Actually, processes A & B that use a shared library libc.so can share the same memory. Somewhat un-intuitively it depends on which docker storage driver you’re using. If you use a storage driver that can expose the shared library files as originating from the same device/inode when they reside in the same docker layer then … Read more
I think the key in your Q is where you write “whereby you do not have to subsequently login if you use the top level navigation to a different product”. I will explain: You want to be able to move from site1.com to site2.com and let site2.com know that you are some user that logged … Read more
I don’t think you can do this with the standard tools. You can use ipcs -mp to get the process ID of the last process to attach/detach but I’m not aware of how to get all attached processes with ipcs. With a two-process-attached segment, assuming they both stayed attached, you can possibly figure out from … Read more
One Word: Boost.InterProcess. If it really needs to be fast, shared memory is the way to go. You nearly have zero overhead as the operation system does the usual mapping between virtual and physical addresses and no copy is required for the data. You just have to lookout for concurrency issues. For actually sending commands … Read more
As you’re on a shared Linux box, you’ll have to ask the system administrator to do the following, probably. Create a startup script in /etc/init.d/solr. Copy this code, my Solr startup script, into that file: #!/bin/sh # Prerequisites: # 1. Solr needs to be installed at /usr/local/solr/example # 2. daemon needs to be installed # … Read more
Sadly there is no direct analogue to RPATH. There are a number of alternative possibilities, each of them most likely undesirable to you in its own special way. Given that you need a different exe for each build flavor anyway to avoid runtime library clashes, as you might guess the easiest thing to do is … Read more
After some (a lot of) digging throughout the web, I found the answer. The access Group that you use when constructing your KeychainItemWrapper class must ALSO be specified in each of your application’s Entitlements.plist file in the “keychain-access-groups” section. It seems almost obvious now that I see “keychain-access-groups“. However, I had no idea to even … Read more
You have two options to retrieve a reference to the object pointed to by a shared_ptr. Suppose you have a shared_ptr variable named ptr. You can get the reference either by using *ptr or *ptr.get(). These two should be equivalent, but the first would be preferred. The reason for this is that you’re really attempting … Read more
Not sure if you found something that works for you or not, but I have a writeup on how to do that very thing on a windows network drive: http://tony.halcyonlane.com/blog/2011/09/22/Using-git-at-work-on-a-Windows-network-drive/ From a cmd prompt change to your mapped drive. $ cd g: Then cd into your soon to be git repository. $ cd scripts Then … Read more